| 초록 |
The most significant proton exchange membrane(PEM) development since the introduction of Nafion by Dupont in 1968 has been a perflourosulfonic acid membrane. However, perflourinated membranes are so expensive due to the toxic and complicated production process and have high MeOH cross-over. In this study, The system of styrene sulfonic acid and blending was used for solving these problems. Polystyrene-b-poly(styrene sulfonic acid) sodium salt (PS-b-PSSNa) was synthesized via stable radical polymerization (SFRP) using TEMPO and the block copolymers were blended with poly(2,6-dimethyl -1,4-phenylene oxide) (MPPO). and then we prepared fuel cell membrane with that. The prepared membrane was characterized by ion conductivity ,water uptake and MeOH permeability etc. Other characters for fuel cell membrane such as phase separation behavior and conductivity etc. will be discussed.
|
